Newbie here, help needed for first connection

Hey guys, I tried using Jami, but I can’t get it to work. I have two Android phones—on two different ISPs—both set up with the default configurations. I scan the QR codes and add the contacts, but they turn orange and stay orange. Messages aren’t coming through. I switch the default from push to DHT: nothing. I add the DHT proxy: nothing. I try on the same Wi-Fi network: nothing (neither push, nor DHT, nor DHT with proxy). I try a whole series of combinations, nothing… But how do I do it? :cry:

Check for IPv4 or IPv6, and then try turning off the DHT proxy and TURN